Locking device for closures



Dec. 18, 1923. 1,695,405

J. A. WILLNERS LOCKING nEvicE FOR CLOSURES' Filed April 1, 1925 J I? Iis LEM .Willners; 1%? Z2, 1 WM 7 vitorney.

ndentor:

Patented Dec. 18, 1928.

UNIT ED PATENT OFFICE. 5

JOHN A. WILLNERS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO PENNUTILITY COMPANY, OF CONSHOHOCKEN, PENNSYLVANIA, A. CORPORATION 013DELAWARE.

. LOCKING DEVICE FOR .GLOSUJRES.

. Application filed April 1,1925, Serial no. 20,019.

My invention relates to improvements in locking devices for closures,the object being to provide lockingmeans that shall be simple andsubstantial, that shall not be injuriously affected by weatherconditions, or by moisture or by foreign substances, or in other wordsthat shall be capable of hard usage without liability of getting out oforder. The invention also comprises means for reducing to a minimum thedanger of accidentally leaving the closure unlocked. In securing thismuch desired object, the parts are so arranged that i the closure cannotbe brought into complete closing position, which condition is plainlyvisible,without first turning the locking element into the unlockingposition, and furthermore the provision thatthe tool for soactuatingthelocking element, cannot be withdrawn therefrom, without firstreturning the locking element into the locking position, all ofwhichwill be herein specifically described.

Referring to the drawings, which illustrate, merely by way of example, asuitable embodiment of my invention Fig. 1 is a plan view.

Fig. 2 is a front elevation with the closure partly open.

Fig.3 is a plan of the underside of the lug connected to the closure.

Fig. 4 is a section on line 4, 4 of Fig. 3.

Fig. 5 is a plan of the lug connected to the collar or stationary part.

Fig. 6 is a section on line 6, 6 of Fig. 5.

Fig. 7 is a section through lugs 19 and 28 on line 7, 7 of Fig. 3 whenthe parts are locked in closed position.

Fig. 8 is a side elevation of the actuating tool. I

Fig. 9 is a fragmentary front elevation of lower end of same.

Fig. 10 is a plan of same.

Similar numerals refer to similar parts throughout the several views.

My invention is herein shown, merely by way of example, as applied tothe filling pipe for an oil tank or the like.

On to the top of the filling pipe 15, is threaded the collar 16, towhich is hinged, as at 17, the cap or closure 18. This closure 18 isprovided with the lug 19, having at its front end the arc-shapedformation 20, channelled as to its'inner side, and the projection 21spaced therefrom. Between these formations 20 and 21 is provided achannel seat 22 for the element or shaft 23, and the compres ,L-shapedpin or arm 25, projecting first at right angles from an intermediatepart of shaft 23, and having its extreme end extending parallel withsaid shaft 23. At the outer end of shaft 23 is provided the triangularformation 26. The underside of lug 19 is chambered, as at 27, see Fig.3, to permit the element 25 to enter the same when the shaft 23 ispushed in against the spring and then rotated.

The collar 16 is provided with a lug 28 registering approximately withlug 19, and having a chamber 29 in its upper side and a recess 30 in thefront wall thereof for receiving the end of member 25. Ablock formation31 is provided abovethe recess 30 having an the end of pin 25, Anoperating tool 32 is provided with an engaging end 33, at right angleswith the main extension of said tool,

formation 20.

I n 0pemti 0n-.When the cap or closure 18 is locked. in the closedposition, the end of member 25 projects into the hole or recess 30 oflug 28, and the triangular end 26 of shaft 23 is in such position thatthe tool can be fitted into same. When it is desired to open theclosure, the end of tool 32 is fitted onto said triangular end 26, andthe tool is then pressed to force the shaft in against the tension ofspring 24, until the lug 36 comes into alinement with the channel in thearc-shaped formation 20. Meanwhile the end of member 25 has beenwithdrawn from the hole 30, by the longitudinal inward movement of shaft23, against'the spring 24. The tool is then turned to the right, orclockwise direction; the said channel holding the shaft in thepressed-in position, so that the end of pin 25 inclined lower edge forengaging andguiding end 26 of shaft 23, it must first be brought backinto initial position, that is with the pin in the locking position,although the lugs 19 and 28, may be separated as shown in Fig. 2.

\Vhen. it'is desired to close, and lock the closure 18 in closedposition, it is necessary to engage the tool 32 with triangular end 26.

and to perform the unlocking operation as above described. The closure18 is then brought into the closed position as in Fig. 7, and then byreversing the movement of the tool,-that is operating it in thecounterclockwise direction, the shaft 23 is rotated to carry the end ofpin 25 under the inclined block 31, which insures the complete closingof the cap 18, and then when the end of pin comes into register with thehole 30, the lug 36 having meanwhile cleared the channel in formation20, the shaft responding to the pressure of spring 24 moves forward toinitial position and the end of pin 25 enters the hole 30, thus lockingthe closure or cap in closed position in which position of shaft 23, asabove inclicated, the tool 82 can be disengaged from the end 26 of shaft23:

hat I claim is 1. In combination with a closure, a fixed formation and amovable formation, a key operated locking element seated in one of saidformations having both rotative and longi- 2. In combination with aclosure, a fixed formation and a movable formation, a key operatedlocking element seated in one of said formations having both rot-ativeand longitudinal movement thereinand adapted to be brought into lockingrelation with the other formation, and means for preventing thedisengagement of the key from the locking element eitcept when thelocking element is in locking position.

3. In combination with a movable pipe cap, locking means thereforcomprising a movable formation and a fixed formation, a key operatedlocking element associated with one of said formations having bothrotatable and longitudinal movement with respect thereto, a springactive in respect to said longitudinal movement, said locking elementadapted to be brought into locking engage-- ment with. the otherformatiomand an armate formation adapted to prevent removal of the keyfrom the locking element except when the locking element is inthelocking position.

JOHN A, WILLNERS.

